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branch-2.1: [Fix](Serde) Support hive compatible output format #49036 - #49831
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Problem Summary:
The output format of complex data types are different between Hive and
Doris, such as array, map and struct.
When user migrate from Hive to Doris, they expect the same format so
that they don't need to modify their business code.
This PR mainly changes:
Add a new option to session variable `serde_dialect`: If set to hive,
the output format returned to MySQL client of some datatypes will be
changed:
Array
Doris: ["abc", "def", "", null, 1]
Hive: ["abc","def","",null,true]
Map
Doris: {"k1":null, "k2":"v3"}
Hive: {"k1":null,"k2":"v3"}
Struct
Doris: {"s_id":100, "s_name":"abc , "", "s_address":null}
Hive: {"s_id":100,"s_name":"abc ,"","s_address":null}
Related #37039Thearas
commented
Apr 7, 2025
Contributor
Thank you for your contribution to Apache Doris. Please clearly describe your PR:
|
Thearas
commented
Apr 7, 2025
Contributor
run buildall |
doris-robot
commented
Apr 7, 2025
BE UT Coverage ReportIncrement line coverage Increment coverage report
|
yiguolei
approved these changes
Apr 11, 2025
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Cherry-picked from #49036